Locking-nut.



R. WATRES.

LOOKING NUT.

- APPLICATION FILED JUNE 7. 1012.

1,088,750. Patented Mar. 3, 1914.

"llmllflh Wm Col-Um mnoamum cm. WASHINGTON n c REYBURN WA'IRES, OFSOB/ANTON, PENNSYLVANIA.

LOCKING-NUT.

Specification of Letters Patent. Patented Mar. 3, 1914:-

Application filed June 7, 1912. Serial No. 702,179.

face of each nut section is a recess 7, 8, in which fit lugs 9, 10,projecting inwardly from the inner edge of the sleeve. \Vith this formof device, the nut sections are dropped into position through the top ofthe sleeve and then the nut with the sleeve sin-rounding it is appliedto the bolt in the ordinary way. Of course, the locking effect describedis equally present.

Such a longitudinally divided nut may be made in a variety of ways. Forinstance, the nut may, in the first instance, be solid and be divided bya sawing operation; or, the sections may be separately formed and eachprovided with a half thread by-a cutting operation; or a blank for eachnut section may be provided and the nut section formed up, thread andall, by a drop forg ing operation.

I claim- 1. A locking nut composed of two separated longitudinalsections each of which has half a complete thread and one of which islonger than the other combined with a sleeve enveloping the nut andadapted to receive a turning wrench.

2. A locking nut/composed of rated longitudinal sections each of whichhas half a complete thread and one of which is longer than the other andeach having a recess on its inner face combined with an envelopingsleeve having at its inner edge projections adapted to seat in saidrecesses.

3. A nut lock composed of two separated longitudinal sections each ofwhich has half a complete thread combined with a sleeve enveloping thenut and adapted to receive a wrench.

4:. A locking nut composed of two separated longitudinal sections eachof which has half a complete thread and one of which is longer than theother combined with a sleeve enveloping the nut and adapted to re ceivea turning wrench the nut sections and sleeve being provided with meansfor retaining the sleeve in position around the nut.

In testimony whereof, I have hereunto subscribed my name.

REYBURN WATRES.

To all whom it may concern Be it known that I, REYBURN iVATRns, acitizen of the United States of America, residing in the city ofScrantomcounty of Lackawanna, and State of Pennsylvania, have invented acertain new and useful Improved Locking-Nut, of which the following is aspecification.

In the accompanying drawing: Figure 1 is a side elevation partly insection; Fig. 2, a section on the line 2, 2, of Fig. 3: Fig. 3, a topplan view of the end and a polygonal sleeve surrounding it: Fig. 4, abottom plan view of the nut: and Fig. 5, a perspective view of the nutsleeve.

1 is an ordinary screw bolt shown as passing through parts 2, 3, fromthe latter of which its threaded end extends. The nut is composed of twocircumferentially equal parts 4, 5,-that is to say, it is dividedlongitudinally into equal sections each of which contains half of ascrew thread that is completed when the two are placed together. Thesections of such a nut may be brought together laterally around the boltand when enveloped by a sleeve 6 that conforms to the exteriorof the nutmay be screwed up as is an ordinary nut.

The primary feature of this invention consists in making one of the nutsections; say section t, somewhat longer than the other and so threadingthem that the complete thread will be formed when the two sections arebrought together with their outer end faces flush, in which case theinner face l of section t extends beyond the inner face of the section 5and, consequently, when the nut is screwed up, the longer section willbe crowded outwardly along the threaded bolt and will bind the threadsof the bolt and those of that nut section together. This may result inbruis- 1 ing the threads, the extent to which that two sepaoccurs beingdependent upon the power exerted in turning the nut. Experience hasshown that when such a sectional nut and sleeve are screwed up tightthere is a tendency to bind the sleeve upon the nut and in somerelations no further means for preventing the sleeve from leaving thenut need be provided.

Where the sleeve is to be positively locked against withdrawal from thenut, the following plan may be adopted. On the under ROBERT A. HULL,

Witnesses l HAROLD Doon.

copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, I). 0."

